Glass composite coating systems herein may be used for industrial applications serving as a chemical barrier against substrate oxidation or other deterioration by corrosive agents, may prevent material build-up in process piping and equipment, may provide for improved bonding strength between concrete and reinforcing media, and may inhibit microbial build-up on exposed surfaces. Traditionally, glass coatings are emplaced on relatively pristine, pre-prepared surfaces. Glass composite coating systems described herein may be bonded to untreated substrates, without the need to clean, polish and/or pre-treat the substrate.

Glass composite coating systems herein may be used for industrial applications serving as a chemical barrier against substrate oxidation or other deterioration by corrosive agents, may prevent material build-up in process piping and equipment, may provide for improved bonding strength between concrete and reinforcing media, and may inhibit microbial build-up on exposed surfaces. Traditionally, glass coatings are emplaced on relatively pristine, pre-prepared surfaces. Glass composite coating systems described herein may be bonded to untreated substrates, without the need to clean, polish and/or pre-treat the substrate.

A glass material is provided, which has a composition of M.sub.2O—ZnO-M′.sub.20.sub.3—Bi.sub.2O.sub.3—SiO.sub.2, wherein M is Li, Na, K, or a combination thereof, and M′ is B, Al, or a combination thereof. A fluorescent composite material can be composed of the glass material and a phosphor material. The fluorescent composite material may collocate with an excitation light source to provide a light-emitting device.

A method is described for assembling at least two parts made of silicon carbide based materials by non-reactive brazing in an oxidizing atmosphere, each of the parts comprising a surface to be assembled, wherein the parts are placed in contact with a non-reactive brazing composition, the assembly formed by the parts and the brazing composition is heated to a brazing temperature sufficient for completely or at least partially melting the brazing composition, or rendering the brazing composition viscous, and the parts and the brazing composition are cooled so as to form, after cooling the latter to ambient temperature, a moderately refractory joint. The non-reactive brazing composition is a composition A consisting of silica (SiO.sub.2), alumina (Al.sub.2O.sub.3), and calcium oxide (CaO), or a composition B consisting of alumina (Al.sub.2O.sub.3), calcium oxide (CaO), and magnesium oxide (MgO), and, before heating the assembly formed by the parts and the brazing composition to the brazing temperature, a supply of silicon in a non-oxidized form is carried out on the surfaces to be assembled of the parts to be assembled, and/or on the surface layers comprising the surfaces to be assembled of the parts to be assembled, and/or in the brazing composition.

A method is described for assembling at least two parts made of silicon carbide based materials by non-reactive brazing in an oxidizing atmosphere, each of the parts comprising a surface to be assembled, wherein the parts are placed in contact with a non-reactive brazing composition, the assembly formed by the parts and the brazing composition is heated to a brazing temperature sufficient for completely or at least partially melting the brazing composition, or rendering the brazing composition viscous, and the parts and the brazing composition are cooled so as to form, after cooling the latter to ambient temperature, a moderately refractory joint. The non-reactive brazing composition is a composition A consisting of silica (SiO.sub.2), alumina (Al.sub.2O.sub.3), and calcium oxide (CaO), or a composition B consisting of alumina (Al.sub.2O.sub.3), calcium oxide (CaO), and magnesium oxide (MgO), and, before heating the assembly formed by the parts and the brazing composition to the brazing temperature, a supply of silicon in a non-oxidized form is carried out on the surfaces to be assembled of the parts to be assembled, and/or on the surface layers comprising the surfaces to be assembled of the parts to be assembled, and/or in the brazing composition.

A glass frit having a low melting point containing (A) Ag.sub.2O, (B) V.sub.2O.sub.5, and (C) at least one first oxide selected from the group consisting of MoO.sub.3, ZnO, CuO, TiO.sub.2, Bi.sub.2O.sub.3, MnO.sub.2, MgO, Nb.sub.2O.sub.5, BaO and P.sub.2O.sub.5. The glass frit preferably contains 40 to 70% by mass of (A), 10 to 40% by mass of (B), and 0.5 to 30% by mass of (C) with respect to the total mass in terms of oxides. Furthermore, the glass frit preferably has a mass ratio (Ag.sub.2O/V.sub.2O.sub.5) of (A) to (B) of 1.8 to 3.2.

A glass frit having a low melting point containing (A) Ag.sub.2O, (B) V.sub.2O.sub.5, and (C) at least one first oxide selected from the group consisting of MoO.sub.3, ZnO, CuO, TiO.sub.2, Bi.sub.2O.sub.3, MnO.sub.2, MgO, Nb.sub.2O.sub.5, BaO and P.sub.2O.sub.5. The glass frit preferably contains 40 to 70% by mass of (A), 10 to 40% by mass of (B), and 0.5 to 30% by mass of (C) with respect to the total mass in terms of oxides. Furthermore, the glass frit preferably has a mass ratio (Ag.sub.2O/V.sub.2O.sub.5) of (A) to (B) of 1.8 to 3.2.

The invention relates to a composition for producing a solar absorber coating, comprising a silicone resin formulated with: (i) at least one compound selected from the group consisting of black ruthenium oxides and black spinel; and (ii) a glass powder. A method of applying the composition and coatings formed are also provided.

The invention relates to a composition for producing a solar absorber coating, comprising a silicone resin formulated with: (i) at least one compound selected from the group consisting of black ruthenium oxides and black spinel; and (ii) a glass powder. A method of applying the composition and coatings formed are also provided.

A composition for the additive manufacture of three-dimensional objects is provided. The composition includes a sinterable frit, a protein binder, and an aqueous-based solvent.